[Xen-devel] [PATCH v3 3/7] vTPM: add TPM TCPA and SSDT for HVM virtual machine when vTPM is added

[Quan Xu <quan.xu@xxxxxxxxx>]

Signed-off-by: Quan Xu <quan.xu@xxxxxxxxx>
---
 tools/firmware/hvmloader/acpi/build.c | 7 ++++---
 tools/libxl/libxl_create.c            | 5 ++++-
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/tools/firmware/hvmloader/acpi/build.c 
b/tools/firmware/hvmloader/acpi/build.c
index 1431296..49f6772 100644
--- a/tools/firmware/hvmloader/acpi/build.c
+++ b/tools/firmware/hvmloader/acpi/build.c
@@ -313,9 +313,10 @@ static int construct_secondary_tables(unsigned long 
*table_ptrs,
 
     /* TPM TCPA and SSDT. */
     tis_hdr = (uint16_t *)0xFED40F00;
-    if ( (tis_hdr[0] == tis_signature[0]) &&
-         (tis_hdr[1] == tis_signature[1]) &&
-         (tis_hdr[2] == tis_signature[2]) )
+    if (((tis_hdr[0] == tis_signature[0]) &&
+        (tis_hdr[1] == tis_signature[1]) &&
+        (tis_hdr[2] == tis_signature[2])) ||
+        !strncmp(xenstore_read("platform/acpi_stubdom_vtpm", "1"), "1", 1))
     {
         ssdt = mem_alloc(sizeof(ssdt_tpm), 16);
         if (!ssdt) return -1;
diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
index 66877b3..ffb124a 100644
--- a/tools/libxl/libxl_create.c
+++ b/tools/libxl/libxl_create.c
@@ -432,7 +432,7 @@ int libxl__domain_build(libxl__gc *gc,
         vments[4] = "start_time";
         vments[5] = libxl__sprintf(gc, "%lu.%02d", 
start_time.tv_sec,(int)start_time.tv_usec/10000);
 
-        localents = libxl__calloc(gc, 9, sizeof(char *));
+        localents = libxl__calloc(gc, 11, sizeof(char *));
         i = 0;
         localents[i++] = "platform/acpi";
         localents[i++] = libxl_defbool_val(info->u.hvm.acpi) ? "1" : "0";
@@ -440,6 +440,9 @@ int libxl__domain_build(libxl__gc *gc,
         localents[i++] = libxl_defbool_val(info->u.hvm.acpi_s3) ? "1" : "0";
         localents[i++] = "platform/acpi_s4";
         localents[i++] = libxl_defbool_val(info->u.hvm.acpi_s4) ? "1" : "0";
+        localents[i++] = "platform/acpi_stubdom_vtpm";
+        localents[i++] = (d_config->num_vtpms > 0) ? "1" : "0";
+
         if (info->u.hvm.mmio_hole_memkb) {
             uint64_t max_ram_below_4g =
                 (1ULL << 32) - (info->u.hvm.mmio_hole_memkb << 10);
-- 
1.8.3.2


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